Ukungcoliswa kwepulasitiki kuwusongo olukhulu endaweni yethu ezungezile futhi sekuyindaba ekhathaza umhlaba wonke.Izikhwama zepulasitiki zendabuko ziyimbangela enkulu kule nkinga, njengoba izigidi zezikhwama zigcina zigcwele izindawo zokulahla imfucumfucu kanye nolwandle minyaka yonke.Eminyakeni yamuva nje, izikhwama zepulasitiki ezivundisiwe nezibolayo zivele njengesixazululo esingaba khona kulolu daba.
Izikhwama zepulasitiki ezivundile zenziwe ngezinto ezisekelwe esitshalweni, njenge-cornstarch, futhi zenzelwe ukudilika ngokushesha nangokuphepha ezinhlelweni zokuvundisa.Ngakolunye uhlangothi, izikhwama zepulasitiki ezibolayo ezibolayo zenziwe ngezinto ezingahle zihlakazwe ama-microorganisms endaweni ezungezile, njengamafutha emifino kanye nesitashi samazambane.Zombili izinhlobo zezikhwama zinikeza enye indlela evumelana nemvelo kunezikhwama zepulasitiki zendabuko.
Imibiko yezindaba yakamuva iye yaqokomisa inkinga ekhulayo yokungcoliswa kwepulasitiki kanye nesidingo esiphuthumayo sezixazululo ezizinzile.Ocwaningweni olushicilelwe ephephabhukwini iScience, abacwaningi balinganisela ukuthi manje sekunezingcezu zepulasitiki ezingaphezu kuka-5 trillion olwandle emhlabeni, okulinganiselwa ku-8 million metric tons epulasitiki engena olwandle minyaka yonke.
Ukuze kuliwe nalolu daba, amazwe amaningi aseqalile ukusebenzisa ukuvinjelwa noma izintela ezikhwameni zepulasitiki zendabuko.Ngo-2019, iNew York yaba izwe lesithathu laseMelika ukuvimba izikhwama zepulasitiki ezisetshenziswa kanye, ukujoyina iCalifornia neHawaii.Ngokufanayo, i-European Union imemezele izinhlelo zokuvala imikhiqizo yepulasitiki esetshenziswa kanye, okuhlanganisa nezikhwama zepulasitiki, ngo-2021.
Izikhwama zepulasitiki ezivundile nezibolayo zinikeza isisombululo esingaba khona kule nkinga, njengoba zenzelwe ukudilika ngokushesha kunezikhwama zepulasitiki zendabuko futhi azilimazi imvelo.Kuphinde kunciphise ukuthembela kwethu kumafutha ezinto ezimbiwa phansi angavuseleleki asetshenziselwa ukukhiqiza izikhwama zepulasitiki zendabuko.Khonamanjalo, sidinga ukuqaphela ukuthi lezi zikhwama zisadinga ukulahlwa okufanele ukuze kuncishiswe ngempumelelo ukungcoliswa kwepulasitiki.Ukumane nje uzilahle kudoti kusengaba nomthelela enkingeni.
Sengiphetha, izikhwama zepulasitiki ezivundisiwe nezibolayo zinikeza enye indlela esimeme kunezikhwama zepulasitiki zendabuko futhi zinamandla okusiza ukulwa nokungcoliswa kwepulasitiki.Njengoba siqhubeka nokubhekana nodaba lokungcoliswa kwepulasitiki, kubalulekile ukuthi sifune futhi samukele izixazululo ezisimeme.
Isikhathi sokuthumela: Apr-23-2023
